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NavSource Online:
Submarine Chaser Photo Archive


Call sign:
Nan - William - Roger - Jig


SC-648 served the Navies of the United States and China.

SC-497 Class Submarine Chaser:

  • Laid down 10 October 1941 by the Delaware Bay Shipbuilding Co., Leesburg, NJ
  • Launched 18 April 1942
  • Commissioned USS PC-648, 11 July 1942
  • Reclassified SC-648 in April 1943
  • Struck from the Naval Register 25 February 1946
  • Transferred to China 30 June 1948
  • Fate unknown.


  • Displacement 96 t.
  • Length 110' 10"
  • Beam 17'
  • Draft 6' 6" (fl)
  • Speed 15.6 kts.
  • Complement 28
  • Armament: One 40mm mount, one/two twin .50 cal. machine gun(s), two/three depth charge projector "K Guns," 14 depth charges with six single release chocks and two sets Mk 20 Mousetrap rails with
    four 7.2 projectiles
  • Propulsion: Two 800bhp General Motors 8-268A diesel engines, Snow and Knobstedt single reduction gear, two shafts.
    Click on thumbnail
    for full size image
    Size Image Description Source
    SC-648 48k T. R. Treadwell
    Splinter Fleet website
    SC-648 87k Plowing into heavy seas
    Courtesy of T. R. Treadwell
    Splinter Fleet website
    Robert Hurst
    SC-648 95k In drydock with her signalman painting the ship's number on the bow
    Courtesy of T. R. Treadwell
    Splinter Fleet website
    SC-648 130k c. 1944
    Seeadler Harbor, Manus, Admiralty Islands
    In drydock with SC-745 astern
    Courtesy of T. R. Treadwell
    Splinter Fleet website
    SC-648 219k
    SC-749 110k c. 1944
    Milne Bay, New Guinea
    SC-731, SC-749, SC-648 and SC-637 nested together alongside their tender
    Alan Ross
    SC-648 61k c. 1944
    Hollandia, New Guinea
    SC-648 77k 9 September 1945
    Leaving Kuching, Sarawak, Borneo. The ship is transporting former British and American prisoners of war to the Australian hospital ship HMAS Wanganella, anchored off the mouth of the Sarawak River
    Australian War Memorial photo 118696
    Mike Green
    SC-648 102k 13 September 1945
    The Australian Hospital Ship HMAS Wanganella receiving recently released Australian ex-prisoners of war at Kuching, Sarawak, Borneo. SC-648 was being used to ferry the men to the hospital ship
    Australian War Memorial photo 118509
    SC-648 76k Australian 8th Division officers, ex-POWs of the Japanese, waving goodbye from the bridge of the SC-648 of the Philippines Sea Frontier, as the vessel pulls away from the wharf on their first stage of their journey back home to Australia
    Australian War Memorial photo 118435

    Commanding Officers
    01LTJG Theodore (Ted) Treadwell Jr., USNR1944
    Courtesy of Joe Radigan

    There is no DANFS history available for SC-648
    Additional Resources and Websites of Interest
    Patrol Craft Sailors Association
    Back To The Main Photo Index Back To the Patrol Craft/Gunboat/Submarine Chaser Ship Index Back To the 110' Submarine Chaser (SC) Photo Index

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    This page created by Joseph M. Radigan and maintained by Tom Bateman
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